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87 lines
2.4 KiB
87 lines
2.4 KiB
/*
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* Minimalist Object Storage, (C) 2015 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package donut
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import (
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"sort"
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"strings"
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)
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// AppendU append to an input slice if the element is unique and provides a new slice
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func AppendU(slice []string, i string) []string {
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for _, ele := range slice {
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if ele == i {
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return slice
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}
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}
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return append(slice, i)
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}
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// TrimPrefix trims off a prefix string from all the elements in a given slice
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func TrimPrefix(objects []string, prefix string) []string {
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var results []string
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for _, object := range objects {
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results = append(results, strings.TrimPrefix(object, prefix))
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}
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return results
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}
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// HasNoDelimiter provides a new slice from an input slice which has elements without delimiter
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func HasNoDelimiter(objects []string, delim string) []string {
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var results []string
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for _, object := range objects {
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if !strings.Contains(object, delim) {
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results = append(results, object)
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}
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}
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return results
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}
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// HasDelimiter provides a new slice from an input slice which has elements with a delimiter
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func HasDelimiter(objects []string, delim string) []string {
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var results []string
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for _, object := range objects {
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if strings.Contains(object, delim) {
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results = append(results, object)
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}
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}
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return results
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}
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// SplitDelimiter provides a new slice from an input slice by splitting a delimiter
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func SplitDelimiter(objects []string, delim string) []string {
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var results []string
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for _, object := range objects {
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parts := strings.Split(object, delim)
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results = append(results, parts[0]+delim)
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}
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return results
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}
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// SortU sort a slice in lexical order, removing duplicate elements
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func SortU(objects []string) []string {
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objectMap := make(map[string]string)
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for _, v := range objects {
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objectMap[v] = v
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}
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var results []string
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for k := range objectMap {
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results = append(results, k)
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}
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sort.Strings(results)
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return results
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}
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